NL72903C - - Google Patents
Info
- Publication number
- NL72903C NL72903C NL72903DA NL72903C NL 72903 C NL72903 C NL 72903C NL 72903D A NL72903D A NL 72903DA NL 72903 C NL72903 C NL 72903C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
- H04M1/652—Means for playing back the recorded messages by remote control over a telephone line
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH656393X | 1947-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL72903C true NL72903C (lv) |
Family
ID=4526529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL72903D NL72903C (lv) | 1947-03-07 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2537407A (lv) |
| CH (1) | CH259612A (lv) |
| GB (1) | GB656393A (lv) |
| NL (1) | NL72903C (lv) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2886640A (en) * | 1948-06-02 | 1959-05-12 | Frederick E M Ballon | Telephone answering and recording devices |
| US2698877A (en) * | 1949-06-28 | 1955-01-04 | George S Koester | Automatic telephone answering system |
| US2713088A (en) * | 1949-12-17 | 1955-07-12 | Telephone Answering And Record | Telephone answering and recording device |
| US2724015A (en) * | 1950-05-27 | 1955-11-15 | Telephone Answering And Record | Telephone answering and recording device |
| US2709202A (en) * | 1950-10-16 | 1955-05-24 | Promundo | Method for the coded remote control of a telephonograph over a telephone system and installation for the performance of the method |
| US2665337A (en) * | 1950-10-16 | 1954-01-05 | Promundo | Telephonograph with answering device |
| US2692915A (en) * | 1951-01-12 | 1954-10-26 | Muller Willy | Telephonograph adapted to be connected to the public telephone system |
| US2769033A (en) * | 1951-09-21 | 1956-10-30 | Waldman Herbert | Telephone message recording and message repeat back systems |
| US2766323A (en) * | 1951-12-27 | 1956-10-09 | Promundo | Method and apparatus for the arbitrary repetttion of parts of automatic telephonograph messages which were not understood |
| US2773123A (en) * | 1951-12-27 | 1956-12-04 | Promundo | Method and device for distant control of a telephonograph by code signals over a telephone line |
| US2773124A (en) * | 1951-12-31 | 1956-12-04 | Promundo | Method and device for controlling a telephonograph |
| US2777899A (en) * | 1951-12-31 | 1957-01-15 | Promundo | Telephonograph with device for repetition of announcements |
| GB776264A (en) * | 1952-08-28 | 1957-06-05 | Unilever Ltd | Improvements relating to the recording of messages on dictating machines |
| US2743315A (en) * | 1952-10-23 | 1956-04-24 | Telephone Answering And Record | Control circuits for telephone answering and recording devices |
| US2866851A (en) * | 1952-10-23 | 1958-12-30 | Telephone Answering And Record | Telephone answering and recording devices |
| US2835737A (en) * | 1953-02-11 | 1958-05-20 | Telephone Answering And Record | Telephone answering and recording devices |
| GB777939A (en) * | 1953-11-10 | 1957-07-03 | Unilever Ltd | Apparatus for controlling dictating machines |
| US3344234A (en) * | 1953-11-30 | 1967-09-26 | Telephone answering and message recording system | |
| US3133992A (en) * | 1958-10-13 | 1964-05-19 | Matthew C Dickman | Automatic answering, recording and reproducing machine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1726947A (en) * | 1924-04-28 | 1929-09-03 | Chauveau Louis Lucien Eugene | Distant control device for use over telephone lines |
| US1765471A (en) * | 1927-10-14 | 1930-06-24 | Westinghouse Electric & Mfg Co | Televox controller and supervisor |
| US1951454A (en) * | 1930-01-16 | 1934-03-20 | Tiefenbacher Rudolf | Method for the representation in print of spoken sounds |
| USRE21151E (en) * | 1931-09-08 | 1939-07-18 | Radio receiving system | |
| US1973081A (en) * | 1932-09-20 | 1934-09-11 | Televoice Corp Of America | Automatic telephone message receiver and recorder |
| BE417017A (lv) * | 1935-08-15 | |||
| US2195081A (en) * | 1938-07-01 | 1940-03-26 | Bell Telephone Labor Inc | Sound printing mechanism |
| US2238555A (en) * | 1939-03-31 | 1941-04-15 | Bell Telephone Laboratoraties | Voice operated mechanism |
| US2261420A (en) * | 1940-05-04 | 1941-11-04 | Peatrophone Corp | Telephone answering and recording apparatus |
-
0
- NL NL72903D patent/NL72903C/xx active
-
1947
- 1947-03-07 CH CH259612D patent/CH259612A/de unknown
- 1947-05-29 GB GB14338/47A patent/GB656393A/en not_active Expired
- 1947-07-29 US US764520A patent/US2537407A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB656393A (en) | 1951-08-22 |
| US2537407A (en) | 1951-01-09 |
| CH259612A (de) | 1949-01-31 |